image1 = new Image(); image1.src = "images/on_01.gif";
image2 = new Image(); image2.src = "images/on_02.gif";
image3 = new Image(); image3.src = "images/on_03.gif";
image4 = new Image(); image4.src = "images/on_04.gif";
image5 = new Image(); image5.src = "images/on_05.gif";

var DH = 0;
var ns4 = 0;
var oldIE = 0;
var domBrowser = 0;
if (document.getElementById) {
	domBrowser = 1; 
	DH = 1;
} else {
	if (document.all) {
		oldIE = 1; 
		DH = 1;
	} else { 
		browserVersion = parseInt(navigator.appVersion); 
		if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {
			ns4 = 1; 
			DH = 1;
		}
	}
} 

function getDiv(divID, withStyle) {
	if (domBrowser) 
		return withStyle ? document.getElementById(divID).style:document.getElementById(divID); 
	if (oldIE) 
		return withStyle ? document.all[divID].style: document.all[divID]; 
	if (ns4) 
		return document.layers[divID];
}

function parentWidth() {
	return window.innerWidth != null? window.innerWidth: document.body.clientWidth != null? document.body.clientWidth:null;
}

function mouseX(evt) {
	if (evt.pageX) 
		return evt.pageX; 
	else if (evt.clientX)
		return evt.clientX + (document.documentElement.scrollLeft ?  document.documentElement.scrollLeft : document.body.scrollLeft); 
	else 
		return null;
}

function mouseY(evt) {
	if (evt.pageY) 
		return evt.pageY; 
	else if (evt.clientY)
		return evt.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop); 
	else 
		return null;
}

function popUp(evt, tipLyr, imgLyr) {
	if (DH) {
		// Get the top/left of image
		img = getDiv(imgLyr,0); 
		xCoord = findPosX(img) - 252;
		yCoord = findPosY(img);

		var wp = parentWidth();
		divStyle = getDiv(tipLyr,1); 
		div = getDiv(tipLyr,0); 
		vis = divStyle.visibility; 

		if (div.offsetWidth) 
			ew = div.offsetWidth; 
		else if (div.clip.width) 
			ew = div.clip.width; 
		if (vis == "visible" || vis == "show") { 
			divStyle.visibility = "hidden"; 
		} else {
			//tv = mouseY(evt) + 15; 
			//lv = mouseX(evt) - (ew/4); 
			//if (lv < 60) 
			//	lv = 60; 
			//else if (lv + ew > wp) 
			//	lv -= ew/2; 
			lv = xCoord;
			tv = yCoord;
			if (!ns4) {
				lv += 'px';
				tv += 'px';
			} 
			divStyle.left = lv; 
			divStyle.top = tv; 
			divStyle.visibility = "visible";
		}
	}
}

function findPosX(obj) {
	var curleft = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function findPosY(obj) {
	var curtop = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}